पेंसिल का आकार षट्कोण क्यों होता है, और उन्हें अपना विशेष पीला रंग कैसे मिला? पेंसिल की दुकान की मालिक  कैरोलिन वीवर हमें पेंसिल का दिलचस्प इतिहास बता रही हैं।

पेंसिल उत्तम क्यों है

What seems like a simple wooden pencil is actually the result of centuries of innovation and collaboration. From early graphite sticks wrapped in sheepskin to today's classic yellow hexagon, each detail tells a story. The distinctive sound, erasability, and iconic shape evolved through problem-solving and creativity. Even the grading system and the beloved eraser came from inventive thinkers determined to perfect this everyday tool.

The Humble Pencil Is a Masterpiece of Design and History

Small Thing Big Idea: Designs that Changed the World

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